Farmall & IHC Tractors Discussion Board |
Re: My H is Cold Natured!
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by captaink on March 28, 2005 at 08:14:59 from (66.115.214.56):
In Reply to: My H is Cold Natured! posted by Tanner Clark on March 28, 2005 at 07:35:11:
If once the engine reaches operating temperature, (180 degrees or more) it runs fine, you don’t have a problem. However if after warming up it still acts up, then you have some kind of fuel restriction. The colder the temperature the less gasoline vaporizes, the less effectively it vaporizes the less thoroughly it mixes with air, thus the less explosive it is under compression. It takes a higher ratio of gasoline to air to start a cold engine than to keep a warmed up engine running. Carbureted gasoline engines need to have the air flow restricted for cold (here cold means anything below operating temperature) starts because of the need for the higher fuel to air ratio. This is why the choke plate in carburetors was invented. On my M there is a spring loaded “flipper” in the choke that opens up a bit as soon as the engine fires up. This is to prevent a severe overload of fuel and consequent flooding of the engine if the full choke was left on after it was running. This was an important feature when you were hand cranking it. Depending on the engine and carburetor settings it may take several minutes of operation before the engine will operate smoothly with the choke completely open. The colder the weather, the longer you will need to choke the engine. I have seen others say that H's don't like a lot of choke for starting, maybe so. I can tell you that my M at 80 degrees F will pop right off, with just a quick feather choke and in a few seconds run fine. At -20 F I have to pull the choke and when it fires up, I wait several seconds before I can even begin to open it up or the engine will starve for fuel. As I said earlier, different engines respond differently, but the principals are still the same. Hope this helps clarify.
Follow Ups:
Home
| Forums
Today's Featured Article -
Show Coverage: Godfrey, Illinois Country Days - by Cindy Ladage. Except for last fourth of July's Old Gold show in Springfield, Illinois, I don't remember when it was so hot. Nevertheless, the heat didn't keep vendors and visitors alike from enjoying the third annual Country Day's Event. Jane Elliott said the event was originally a one man show. "Barry Seiler, owner of Country Town Farm Supply store used to invite people up to the Johne Deere store. He would give hats and a free meal for everyone that brings a tractor." Elliott said while this
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co. All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|